Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
You may find worker termites in a termite dirt tube, will usually be white and almost translucent. Dirt tubes are soil colored and usually the diameter of a pencil. You may find these on the exterior of infested buildings. You can cut a tube open to check for termites.